Multi-level chessboard



FIG. 1 is a top plan view of a multi-level chessboard showing my original design;

FIG. 2 is a front elevational view thereof, the back, right side and left side views being a mirror image of this front view;

FIG. 3 is a bottom view of said multi-level chessboard. 

The ornamental design for a multi-level chessboard, substantially as shown and described. 